# StackTower 2D vs Reflex Circle

The clearest difference is ads: Reflex Circle at none against StackTower 2D's shown. StackTower 2D's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 17.6). On price, update cadence and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

StackTower 2D ships an update every 3 days, Reflex Circle every 2 days. The most recent releases landed on October 11, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | StackTower 2D | Reflex Circle |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 3 days | **Every 2 days** |
| Size | 8 MB | 13 MB |
| Requires iOS | **15.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Pravin Barapatre](https://appshunter.io/developer/1860741036) | [Reena Bouk](https://appshunter.io/developer/1865602850) |

## What reviewers say

### StackTower 2D

[App page](https://appshunter.io/ios/app/stacktower-2d/id6756459996)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases:** none


### Reflex Circle

[App page](https://appshunter.io/ios/app/reflex-circle/id6760378564)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is StackTower 2D free?

StackTower 2D is free to download, with no in-app purchases.

### Is Reflex Circle free?

Reflex Circle is free to download, with no in-app purchases.

### Do StackTower 2D or Reflex Circle have ads?

StackTower 2D shows ads; Reflex Circle does not.

### Which is updated more often, StackTower 2D or Reflex Circle?

StackTower 2D ships an update every 3 days, and Reflex Circle every 2 days. Most recently, StackTower 2D was updated on October 11, 2026 and Reflex Circle on October 7, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*